Material treating machine



Aug. 29, 1933. L. J. HRUBY MATERIAL TREATING MACHINE Filed Deb. 10, 1930panying drawing, wherein Patented Aug. 29, 1933 lforlgillklyacorporation of;N ew York I LAppli c n. n cenite iio, 1930 ;Serial No.501,205

' in ;the supply of coating material for preventing the coating materialfrom being forcibly thrown out of the container due to suddenfluctuations in the gas pressure in the apparatus caused by' premature;ignition of the vaporized solvents 'ofthe coating material. a f

1 A better understanding of; the invention will be had by reference tothe followingdetailed description, taken in conjunctionwith the accom-IFigJ 1 is a front elevational vie the features of the invention an'd If' Fig. 2 is a vertical sectionalview taken along the line 2-2 '0 f,Fig.l in th i reference characters designate-- th e same/parts e directionof the arrows. e e Referring now to the dravv ingwherein like throughoutthe several views, numeral 5' designates generally a. supportingi-framework uponwhich is 'adjustably mounted a receptacle 6 pro- "videdwith upwardly extending standards 7 and- '8 in which is journaled theshaft of a sheave il2 to whicha strand of wire 13 may be passed from apulley. l-mounted on a shaft 16 supported independently of "theremainder of the mechanism and driven by means not shown. The receptacle6 is adaptedto containva supply of coatingme .dium' 17 composed ofsubstantially non-combustible ingredients combined withsuitablevolatile, combustible substances.

12 that the wire 13in passing around-the sheave will be passed throughthe bath 17 of"thecoat-' ing medium. An upwardly extending 'portioni21of the receptaclefi supports a furnace designated generally by thenumeral 20 inlwhich the volatile combustible ingredients of thecoatingiinjedium are ignited and burned to bake the substantially diumon'the wire or core. 1 i a I l The furnace 20 which: will be describedmore non-combustible ingredients of the coating 'rne- I I H wpartlyin'secf'i. o tion of'ai iwire enameling apparatus embodyingdownwardly .to the supply. of'coating medium 1'1;

e The coating medium is -maintained at such alevel relative to thesheave in dea 'neremiaen iis"secured t6 the lower end thereof adjacentthe sheave12 a -closure member. 22havingdownwardlyfextendingteeth whichextend into the grooves inthesheaveL so' that upon rotation of the,sheave; the. coating; m edium l7 which islpositioned in thewreceptacle'6 willform a seal whichexcludesoutside' airffrom;

a chamber 23; formed by the; upwardly extends; ing portion 21 of thereceptacle 6, the sheave 12; andi'the closureinember..22. Withinthissub-I; stanti'ally. air-tight chamber; the combustible" sol- Yvaporized previous to theirentranceinto the fur: nace 20. 1

, Inthe lower portion of thefurnace20 a heating tube 251s positionedthrough" which the wire 13 combustion chamber '26 of the furnace 20.Seen cured-to. the outer surfaces of theheating tube; T

-25 areIelectrical heatingelements 27'WhiChjSe1YQf'Z5 being-coated;passes v-just' priori to entering thev t v to heat the tube,'thereb'yto'complete fthe volatile chamber 26, where the combustible gasesformed, by the volatilization of the coating rnediumj areinitially-ignited by means' hoija sparl; -p1ug 3 Upon being ignitedjthecombustible ssubstances of ,e 1,

thescoating' medium" will supply, suff cient heat to 1 bustion being.drawn system 31 V i In wire enam scribed hereinbefore theignition ofthe vapors of a bake the a; substantially noncombustible ingredientsithereof uponthe wireythe fumesoi com; I p

byajsuitableexhaust H ArnRIALnREATINc mourns x Louis Jo seph- Hruby,Cicero, fnl fassignr to Western" Electric" Company; 'lncorpo'ratedg Newvents 'of the coatingimedium*arevolatilizedor izationr'oit thecombustibleysolvents of-thecoating i i hiedimn "prior ,to j. its"entering; the combustion lifig" remains of the e d-e; i

the solvents-of the coating mediums'ometime's Y causes suddenfluctuations in the gas pressure inthe combustion chamber which aretransmitted in the receptacle "6 with 'sufficientl force to cause someof themedium to be thrown forcibly outlo the receptacle At times in theoperation of the machine explosions will also, take place in the 'va-, v.porizingicharnber 23 due to the premature igni-l I tion of the vaporsofg the solventsof the coating materia1, also resulting insomejof;thecoating medium being thrown out of the receptacle In .orderto eliminate this danger there is provided a 7' resilient baffle 33whichis V-shaped in cross-section and which has one l'eg'thereof inengagement b l with the receptacle'as indicated at- 34-, thje other Tleg thereof resiliently engaging" the peripherali;

surfaces of'the sheave lzas indicated at -35. The

originalshape of the baille33 is such that it must 1 i be compressed orsprung to bring it into the posi tion sh'own in Fig .2, with theresultthat the U per leg of the V' presses against the sheave 12 tomaintain it in yielding engagement with the I sheave; The bafiie 33 isso positioned that the uppermost portion thereof at the-apex of the V,as indicated by the numeral 36, is just below the surface of the coatingmedium 17- in the receptacle 6. The bafii'e is'preferably formed of amaterial such as sheet steel of sufficient rigidity to enable it toresist the maximum gas pressures developed I inth'eapparatus. I I V i IIn the process of baking the enamel on the wire, a portion of theproducts of combustion, such ascarbon and the like, which are notcarried upwardly out of the, baking chamber,settle down-f1 ward1y on thecoating bath and accumulate -as' sediment on the portion of thebafiie'lying on the base'of the receptacle. This sediment may "bereadily removed from the bath byiwithdrawing the bailie from thereceptacle and removing the sediment adhering thereto. Y

' In the o eration of the apparatus, the wire, 13"

is drawn from a-supply (not shown); passed around the-pulley llydownwardly to the sheave l2 and-through the coating medium, andithenceupwardly through thevaporizing chamber. 23.;the heating tube-25,.to thecombustionchamber .26,

where the volatile substances of the coating medium which have beenvaporized-. are'ignited by the sparkplug the. heat generatedbythe.combustion of the solvents. being utilized to bake the remainingingredients of the coating medium.

uponthe strand of wire. A strand of wirema'y. be passed around the.pulley 14 and sheave l2zany desired number of times depending. upon .thethickness of the coating which" itis desired to apply to the strand-'1In the event that the vcla-t tile substances'of the coating mediumareprematurely ignited in the vaporizing chamber-23 or that the ignitionthereof in the combustion chamber occurssuddenly so that the gases ofcombustion tend'to agitate the coating medium."

1'7. and throw} it outfofithe receptacle, such-result is prevented bythe baffle 33 which prevents agi i tation of the material-adjacent theright side 1 (Fig. 2) of the receptacle, due to the fact that it .closessubstahtiallgall "oflthe open space in they receptacle bet veen thebottom of the sheave and the: lower surface .ofthe receptacle..Theib'afiie 33 may be removed during the placing-of *the wire .to beoated upon thepulley l l and sheav'e 12.

receptacle in the bath; 7 1, In an apparatus for treating material, acon-' vents of the coating material are utilizedto fur;

nish the heat necessary to bake the substantially noncombustibleingredients of: the coating com-' pound on thewire, it is to beunderstood'that the I invention is applicableto other niaterial'treatingmechanisms and the'scope of theinvention is to be limited only claims. I

' What is claimed is:

1. In a materialtreating apparatus, acon tainer fora treating Ymedium,asheave positioned in the'container for directingmaterial through themedium,and a bafiie positioned in the container under the surface of themedium and in yielding engagement with the sheave to prevent the mediumfrom being discharged fromthe container.

2.-In a material treating apparatuaxa container for a treatingmediumhaving'combustible ingredients, a sheave for directing material throughthe medium in the container,means for igniting. the combustibleingredients of the medi-f um to hardenthe other ingredients of themedi-z um upon the material, and a V shapedbafl ie posiby the scope ofthe appended tioned inthe contjainerbelow the surface of the medium,with one leg of the'v yieldingly engaging the'sh'eave for, preventingthe medium from 'be- :ing ejectedfroin the container. i.

3. In an apparatus for treating material, a

container for holding a' supply of treating material, a combustionchamber for bakingthe material, and means associated with the containerto prevent' eruptions of the treating material therefrom; due to changesin gas pressure, said means extending "into the bath'and forming a tainer for holding a supply of treating material, a combustion chamberforjbaking the material,

means removablyfsecured to the container to prevent eruptions of thetreating material therefrom, due to changes in gas pressure, and amember integral with said meansextending overthe bottom of thecontainer. 1' 3. f I

" LOUIS Josn'i n HRUBY.

